Go looking for it on the ground, however, and there is nothing to find. The cave has vanished from the surface entirely, leaving behind only its cartographic ghost and a quiet question about what, exactly, the surveyors who mapped it actually saw.

The ringfort itself, by contrast, survives in good condition within level pastureland. A rath, as this type of monument is known, is a roughly circular enclosure built during the early medieval period, typically between the fifth and twelfth centuries, and used as a defended farmstead. This one measures 23.5 metres in diameter and is defined by two concentric banks of earth and stone with a fosse, or ditch, running between them. The inner face of the inner bank is reinforced with stone, a detail that suggests some care in its original construction. At the south-east, a causewayed entrance gap just 1.6 metres wide is still legible, its sides stone-lined, narrow enough that it would have been straightforward to defend or block. The double-bank arrangement places this among the more substantial examples of the type, which were generally associated with higher-status households in the early medieval landscape.